Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS camera

Show simple item record Riza, Nabeel A. La Torre, Juan Pablo 2020-07-14T09:21:33Z 2020-07-14T09:21:33Z 2016-12-12
dc.identifier.citation Riza, N. A. and La Torre, J. P. (2016) 'Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS camera', Optics Express, 24, pp. 29427-29443. doi: 10.1364/OE.24.029427 en
dc.identifier.volume 24 en
dc.identifier.startpage 29427 en
dc.identifier.endpage 29443 en
dc.identifier.issn 1094-4087
dc.identifier.doi 10.1364/OE.24.029427 en
dc.description.abstract For the first time, proposed and demonstrated is a simultaneous dual optical band coded access optical sensor (CAOS) camera design suited for extreme contrast multispectral bright target scenarios. Deploying a digital micromirror devices (DMDs)-based time-frequency agile pixels CAOS-mode within a two point detector spatially and spectrally isolating framework, this imager simultaneously and independently detects pixel selective image information for two different broad spectral bands that further undergo independent spectral image data extraction via finer-tuned wavelength filtering using all-optical or CAOS-mode electronic filters. A proof-of-concept visible-near infrared band CAOS imager is successfully demonstrated using a target scene containing LEDs and engaging narrowband optical filters. In addition, using the CAOS-mode, demonstrated is the RF domain simultaneous color content monitoring of a white light LED image pixel. Also proposed is the use of a higher bit count analog-to-digital converter (ADC) with both range and sampling duration parameter control along with a larger data set electronic DSP to extract higher DSP gain and realize additional noise suppression. Using a 16-bit ADC and 2,097,152 point fast Fourier transform (FFT) digital signal processing (DSP) for a 633 nm laser engaged test target scene that is subject to nearly 7 decades (107) of gradual optical attenuation, the experimental camera demonstrates an agile pixel extreme dynamic range of 136 dB, which is a 56 dB improvement over the previous CAOS-imaging demonstrations. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Optical Society of America en
dc.rights © 2016 Optical Society of America en
dc.subject Digital signal processing en
dc.subject Analog to digital conversion en
dc.subject Cameras en
dc.subject Digital devices en
dc.subject Fast Fourier transforms en
dc.subject Image processing en
dc.subject Information filtering en
dc.subject Infrared devices en
dc.subject Light emitting diodes en
dc.subject Pixels en
dc.subject Signal processing en
dc.subject Spectroscopy en
dc.subject Micromirror en
dc.subject Optical sensor en
dc.subject Dynamic range en
dc.title Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS camera en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Nabeel Riza, Electrical & Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: en
dc.internal.availability Full text available en 2020-07-14T09:17:22Z
dc.description.version Published Version en
dc.internal.rssid 421653069
dc.internal.wokid WOS:000390809100019
dc.description.status Peer reviewed en
dc.identifier.journaltitle Optics Express en
dc.internal.copyrightchecked No
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress en

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